Home / 20,541.69-28,364.81-13,001.32

Finding the Fourth Proportional to 20,541.69, 28,364.81 and 13,001.32

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Solution

The fourth proportional to 20,541.69, 28,364.81 and 13,001.32 is: 17,952.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,541.69 : 28,364.81 = 13,001.32 : x
  2. Step 2: Convert to fraction form
    20,541.69/28,364.81 = 13,001.32/x
  3. Step 3: Cross multiply
    20,541.69x = 28,364.81 × 13,001.32
  4. Step 4: Simplify right side
    20,541.69x = 368,779,971.55
  5. Step 5: Solve for x
    x = 368,779,971.55/20,541.69
  6. Step 6: Final answer
    x = 17,952.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.